Servidores DNS Principal (mname) y Secundario (rname)
host: bahnhofspate.de
class: IN
ttl: 170
type: SOA
mname: a.dns-gelsen.net
rname: hostmaster.dns-tool.gelsen.net
serial: 2022021000
refresh: 3600
retry: 1800
expire: 1209600
minimum-ttl: 600